I grew up in a rural area where the population was sparse. There were probably no more than five houses within a mile of where we lived. However, our closest neighbors, which were about a quarter of a mile away, had twin girls who were about a year younger than I was. Being no other boys around, naturally my best playmates were the twins. The three of us were together all the time. You never saw one without the other. As our ages progressed and we became interested in the opposite sexes the three of us began to experiment. Most people have gone through the stage of, 'you show me yours and I'll show you mine.'
Well, in my case it was, 'you show us yours and we will show you ours.' We went from that stage to masturbating each other to other things I cannot mention here. If I played with one I had to play with both. Let me tell you, if you think it was fun to do these sort of things with one girl just imagine doing it with two. I would take turns playing with their pussies and get both of them to cum. Then it was their turn to make me feel good. Ever heard the saying that 'two hands are better than one'? I can assure you that is true, except I had four hands working on me. They would take turns jacking my dick. While one worked on my dick the other was busy with my balls or some other part of my body. There were times when I masturbated both of them at the same time. Sometimes I could talk them into doing each other while I watched or joined in. Those long summer fun-filled days are a distant memory but I still get aroused when I think of the good times we had.
I will also tell you that I eventually married one of those twin girls. For three years after we married we continued our threesomes but after the other twin married we stopped because she didn't feel her husband would understand or accept, and she didn't want to take any chances doing anything behind his back. But, it was fun while it lasted.